<template>
    <Dialog v-model="dialogVisible" title="分配角色">
        <el-form ref="formRef" v-loading="formLoading" :model="formData" label-width="80px">
            <el-form-item label="用户名">
                <el-input v-model="formData.username" :disabled="true"/>
            </el-form-item>
            <el-form-item label="用户昵称">
                <el-input v-model="formData.nickname" :disabled="true"/>
            </el-form-item>
            <el-form-item label="角色">
                <el-select v-model="formData.roleIds" multiple placeholder="请选择角色">
                    <el-option v-for="item in roleList" :key="item.id" :label="item.name" :value="item.id"/>
                </el-select>
            </el-form-item>
        </el-form>
        <template #footer>
            <el-button :disabled="formLoading" type="primary" @click="submitForm">确 定</el-button>
            <el-button @click="dialogVisible = false">取 消</el-button>
        </template>
    </Dialog>
</template>
<script lang="ts" setup>
import * as PermissionApi from '@/api/system/permission'
import * as UserApi from '@/api/system/user'
import * as RoleApi from '@/api/system/role'

defineOptions({name: 'SystemUserAssignRoleForm'})

const {t} = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formData = ref({
    id: undefined,
    nickname: '',
    username: '',
    roleIds: []
})
const formRef = ref() // 表单 Ref
const roleList = ref([]) // 角色的列表

/** 打开弹窗 */
const open = async (row: UserApi.UserVO) => {
    dialogVisible.value = true
    resetForm()
    // 设置数据
    formData.value.id = row.id
    formData.value.username = row.username
    formData.value.nickname = row.nickname
    // 获得角色拥有的菜单集合
    formLoading.value = true
    try {
        formData.value.roleIds = await PermissionApi.getUserRoleList(row.id)
    } finally {
        formLoading.value = false
    }
    // 获得角色列表
    roleList.value = (await RoleApi.getSimpleRoleList()).filter(v=>v.id!=1)
}
defineExpose({open}) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
    // 校验表单
    if (!formRef) return
    const valid = await formRef.value.validate()
    if (!valid) return
    // 提交请求
    formLoading.value = true
    try {
        await PermissionApi.assignUserRole({
            userId: formData.value.id,
            roleIds: formData.value.roleIds
        })
        message.success(t('common.updateSuccess'))
        dialogVisible.value = false
        // 发送操作成功的事件
        emit('success', true)
    } finally {
        formLoading.value = false
    }
}

/** 重置表单 */
const resetForm = () => {
    formData.value = {
        id: undefined,
        nickname: '',
        username: '',
        roleIds: []
    }
    formRef.value?.resetFields()
}
</script>
